˜yÐÄvlog

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View synonyms for

top-secret

[ top-see-krit ]

adjective

  1. bearing the classification top-secret, the highest level of classified information.
  2. limited to persons authorized to use anything so classified. Compare classification ( def 5 ).


top-secret

adjective

  1. containing information whose disclosure would cause exceedingly grave damage to the nation and therefore classified as needing the highest level of secrecy and security
“Collins English Dictionary — Complete & Unabridged†2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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˜yÐÄvlog History and Origins

Origin of top-secret1

First recorded in 1940–45; top 1 + secret
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Example Sentences

Examples have not been reviewed.

If a communication system must be used to transmit top-secret information, it must be one of those developed by the government using highly secure encryptions developed especially for that purpose.

From

Navy program involving nuclear energy, a position that required a top-secret clearance and prohibited dual citizenship.

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Fans crossed their fingers, hoping that his exhaustion might be code for a top-secret new project.

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“It will become, potentially, 'The Manhattan Project' of our time,†the president-elect wrote on his social media platform, referring to a top-secret World War Two programme to develop nuclear weapons.

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Anton was an officer at a top-secret nuclear weapons facility in Russia.

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